The diagnosis is made clinically, and usually this is clear cut if the lesion is associated with the flange of a denture. Tissue biopsy is not usually indicated before removal of the lesion, since the excises surgical specimen is usually sent for histopathologic examination and the diagnosis is confirmed retrospectively. Rarely, incisional biopsy may be indicated to rule out neoplasia, e.g. in the presence of suspicious ulceration. The appearance may also be confused with pyogenic granuloma.

The excessive tissue is composed of cellular, inflamed fibrous connective tissue. The appearance of an epulis fissuratum microscopically is an overgrowth of cells from the fibrous connective tissue. The epithelial cells are usually hyperkeratotic and irregular, hyperplastic rete ridges are often seen.

Screening tools for contact granulomas are not currently available. Diagnosis of contact granulomas require visualization using laryngoscopy, and may require further biopsy for differential diagnosis. A combination of symptoms and lifestyle factors may be linked with the development of a contact granuloma, however symptoms vary greatly by individual. Some lifestyle factors that have been linked with elevated risk of development of contact granulomas include frequent use of the voice, especially when in loud environments, and concurrent use of the voice with alcohol consumption (increasing risk of gastroesophageal reflux symptoms). Contact granuloma may also arise after intubation, and so following intubation, patients should be monitored if voice symptoms arise. Symptoms may or may not include hoarse voice, described as "huskiness" by some patients, "aching" in the throat related to increased effort to produce voice, and the feeling of having a lump in one's throat when swallowing. It is also possible to have no such symptoms, especially if the granuloma is small. A patient presenting with such symptoms or risk factors should therefore be referred for further visualization. It is therefore recommended to obtain a diagnosis from a doctor.

Various methods are used to diagnose contact granuloma which aid in differentiating it from other vocal fold pathology. Laryngoscopy can allow visualization of the suspected granuloma while also checking for signs of vocal abuse. Laryngoscopy, as well as an acoustic analysis of the voice, can help rule out vocal fold paresis as an underlying cause. Microscopic examination of the tissue can help determine that the lesion is benign rather than cancerous, as would be the case in contact granuloma. Other methods such as laryngeal electromyography and reflux testing can also be used to evaluate the function of the vocal folds and determine if laryngopharyngeal reflux is contributing to the pathology.

Due to its overwhelming incidence on the gingiva, the condition is often associated with two other diseases, though not because they occur together. Instead, the three are associated with each other because they appear frequently on gingiva—peripheral giant cell granuloma and peripheral ossifying fibroma. Detailed analysis can be used to distinguish these conditions.

Treatment usually involves surgical removal of the lesion down to the bone. If there are any adjacent teeth, they are cleaned thoroughly with scaling and root planing (SRP) to remove any possible source of irritation. Recurrence is around 10%.

Prognosis is usually good, however recurrence may happen with rate up to 16%. Presence of myxoid structures in the pyogenic granuloma may be the main cause of recurrence.

Although pyogenic granulomas are not infectious or malignant, treatment may be considered because of bleeding or ulceration. Frequently, pyogenic granulomas are treated with electrodesiccation (cauterization) and curettage (excision), though laser treatment using pulsed dye laser or CO laser is often effective.

Several reports have demonstrated the efficacy of topical application of the beta-adrenergic antagonist timolol in the treatment of pediatric pyogenic granuloma.

There is usually no treatment if the pyogenic granuloma occurs during pregnancy since the lesion may heal spontaneously. Recurrent bleeding in either oral or nasal lesions may necessitate excision and cauterization sooner, however. If aesthetics are a concern, then treatment may be pursued as well. Usually, only minor surgery may be needed, along with a dental cleaning for oral lesions to remove any calculus or other source of irritation. For nasal lesions, nose-picking should be discouraged.

In longstanding scarred lesions, squamous cell carcinoma can develop.

1)positive tuberclin test

2)chest radiograph

3)CT scan

4)cytology/biopsy (FNAC)

5)AFB staining

6)mycobacterial culture

If the causative factor persists, tissue will become more fibrous over time.

On diascopy, it shows characteristic "apple-jelly" color. Biopsy will reveal tuberculoid granuloma with few bacilli. Mantoux test is positive.

Granuloma annulare, microscopically, consists of dermal epithelioid histiocytes around a central zone of mucin - a so-called palisaded granuloma.

Peripheral giant-cell granulomas appear microscopically as a large number of multinucleated giant cells, which can have up to dozens of nuclei. Additionally, there are mesenchymal cells that are ovoid and spindle-shaped. Near the borders of the lesion, deposits of hemosiderin and hemorrhage is often found. In 50% of cases, ulcerations are present.

Because granuloma annulare is usually asymptomatic and self-limiting with a course of about 2 years, initial treatment is generally topical steroid creams, followed by oral steroids and finally intradermal injections at the site of each ring. Treatment success varies widely, with most patients finding only brief success with the above-mentioned treatments. New research out of India suggests that the combination of rifampin (600 mg), ofloxacin (400 mg), and minocycline hydrochloride (100 mg) once monthly, or ROM therapy, produces promising results. Most lesions of granuloma annulare disappear in pre-pubertal patients with no treatment within two years while older patients (50+) have rings for upwards of 20 years. The appearance of new rings years later is not uncommon.

Inflammatory myofibroblastic tumours are diagnosed based on their appearance under the microscope, by pathologists. Medical imaging findings are non-specific.

Primary diagnosis usually starts off with a thorough physical exam and evaluation of medical history. To further investigate, a dermoscope, a diagnostic tool, is used by the dermatologist to examine the skin using a magnified lens. A complete blood count (CBC) along with other blood tests can also be done to rule out any sort of other infections. Lastly, a skin biopsy test may be ordered to arrive at a definitive diagnosis. This pathological examination of the skin biopsy helps to arrive at the correct diagnosis via a fungal culture(mycology). The biopsy is put together with clinical and microscope findings and study of the special tissues if need be. The signs and symptoms of MG are similar to many other clinical conditions and therefore it is necessary to perform all of the additional tests in order for a physician to correctly rule out all other possible diagnoses.

Patch-type granuloma annulare (also known as "Macular granuloma annulare") is a skin condition of unknown cause, more commonly affecting women between 30 and 70 years of age, characterized by flat or slightly palpable erythematous or red-brown skin lesions.

The basis of management is to find and correct the underlying cause. Many times cats with EGC will respond to treatment with corticosteroids or to ciclosporin.

Treatment for fungal sinusitis can include surgical debridement; helps by slowing progression of disease thus allowing time for recovery additionally we see the options below:

- In the case of invasive fungal sinusitis, echinocandins, voriconazole, and amphoterecin (via IV) may be used

- For allergic fungal sinusitis, systemic corticosteroids like prednisolone, methylprednisolone are added for their anti-inflammatory effect, bronchodilators and expectorants help to clear secretions in the sinuses.

PCNA and Ki67 immunoreactivity happens in case of fibroma and peripheral granuloma.

In terms of diagnosis, the clinical examination gives an idea about fungal sinusitis, as well as:

Idiopathic facial aseptic granuloma is a cutaneous condition characterized by a chronic, painless, solitary nodule, reminiscent of an acne nodule, appearing on the cheeks of young children. It has a prolonged course, but spontaneously heals.

The definitive diagnosis is by histologic analysis, i.e. and examination under the microscope.

Under the microscope, OKCs vaguely resemble keratinized squamous epithelium; however, they lack rete ridges and often have an artifactual separation from their basement membrane.

On a CT scan, The radiodensity of a keratocystic odontogenic tumour is about 30 Hounsfield units, which is about the same as ameloblastomas. Yet, ameloblastomas show more bone expansion and seldom show high density areas.

The exact cause of Majocchi's granuloma is not well established however a dysfunctinoal immune system may be a causative factor. The first form of MG, the superficial perifollicular form occurs predominately on the legs of otherwise healthy young women who repeatedly shave their legs and develop hair follicle occlusions that directly or indirectly disrupt the follicle and allow for passive introduction of the organism into the dermis. Hence, the physical barrier of the skin is important because it prevents the penetration of microorganisms. Physical factors that play a major role in inhibiting dermal invasion include the interaction among keratin production, the rate of epidermal turnover, the degree of hydration and lipid composition of the stratum corneum, CO levels, and the presence or absence of hair. Keratin and/or necrotic material can also be introduced into the dermis with an infectious organism to further enhance the problem. In immunocompromised individuals, the use of topical corticosteroids may lead to a dermatophyte infection due to local immunosuppression.

Radiologically

- Odontogenic Myxoma

- Ameloblastoma

- Central Giant Cell Granuloma

- Adenomatoid odontogenic tumor

Histologically

- Orthokeratocyst

- Radicular cyst (particularly if the OKC is very inflamed)

- Unicystic ameloblastoma

The disease mimics many other dermatoses and can be confused with conditions, such as sarcoidosis, discoid lupus erythematosus, mycosis fungoides, and fixed drug eruption.